expand_datatype():   new method expand_typecase():   new method
expand_datatype():
  new method
expand_typecase():
  new method


git-svn-id: 6b0ac017e42d307e3c8dde35033ecb159d7d210f@29 6687424e-f796-406d-b1dd-24293e5947de

samrushing/irken-compiler,samrushing/irken-compiler,samrushing/irken-compiler,samrushing/irken-compiler